The nature of Aldo’s injury wasn’t disclosed, but his title fight with Erik Koch (13-1 MMA, 2-0 UFC) has been “postponed,” meaning a replacement likely won’t be sought.

UFC 149 takes place July 21 at Scotiabank Saddledome in Calgary, Alberta, Canada. UFC 148, meanwhile, takes place July 7 at MGM Grand Garden Arena in Las Vegas. Both air on pay-per-view.

Faber and Barao now have an extra two weeks to prepare for the interim title fight, which was put together when reigning bantamweight champ Dominick Cruz was injured and forced out of a fight with Faber. Their trilogy match was supposed to follow their recent coaching stints on “The Ultimate Fighter: Live.” When Cruz scratched due to a knee injury this past month, Barao ultimately was chosen as a replacement from a list of candidates that also included Ivan Menjivar and Michael McDonald.

UFC officials have not disclosed what fight will take Faber and Barao’s spot as the new UFC 148 co-headliner.

Aldo’s injury is the latest in a series that’s included Cruz, Vitor Belfort, Brian Stann, Thiago Silva and Michael Bisping in recent weeks.

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